Thanks for the bug report. Please:

1. Check what kernel drivers are actually in use:

   lspci -k -d::300 > drivers.txt

2. Next time the problem happens, collect the latest system log:

   journalctl -b0 > journal.txt

3. Attach the resulting text files here.

4. Attach a video of what you see on your own screen.



** Changed in: ubuntu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/2152811

Title:
  Screen flicker and mouse trails

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